/* roulang page: index */
:root {
      --primary-deep: #0A0E27;
      --accent-cyan: #00F0FF;
      --accent-red: #FF4655;
      --bg-light: #F0F2F5;
      --card-bg: #FFFFFF;
      --text-dark: #1A1F3A;
      --text-muted: #5A6070;
      --text-light: #B0B8D0;
      --white: #FFFFFF;
      --shadow-sm: 0 4px 20px rgba(10,14,39,0.06);
      --shadow-glow: 0 8px 30px rgba(0,240,255,0.12);
      --radius-card: 16px;
      --radius-pill: 30px;
      --font-mono: "DIN Alternate", "Roboto Mono", "Courier New", monospace;
      --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: var(--font-sans);
      background-color: var(--bg-light);
      color: var(--text-dark);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      scroll-behavior: smooth;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

    button, .button {
      cursor: pointer;
      font-family: var(--font-sans);
      border: none;
      outline: none;
      transition: all 0.25s ease;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 导航系统 */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 72px;
      background: rgba(255,255,255,0.92);
      backdrop-filter: blur(12px);
      box-shadow: 0 2px 20px rgba(0,0,0,0.03);
      z-index: 100;
      display: flex;
      align-items: center;
    }

    .nav-container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    .logo {
      font-size: 1.5rem;
      font-weight: 700;
      letter-spacing: 0.5px;
      color: var(--primary-deep);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .logo i {
      color: var(--accent-cyan);
      font-size: 1.8rem;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 2rem;
    }

    .nav-menu a {
      font-weight: 500;
      color: var(--text-dark);
      font-size: 0.95rem;
      position: relative;
    }

    .nav-menu a:hover,
    .nav-menu a.active {
      color: var(--accent-cyan);
    }

    .nav-cta {
      background: linear-gradient(135deg, #00F0FF, #0088CC);
      color: white;
      padding: 10px 22px;
      border-radius: 30px;
      font-weight: 600;
      font-size: 0.9rem;
      box-shadow: 0 4px 12px rgba(0,240,255,0.25);
    }

    .nav-cta:hover {
      box-shadow: 0 0 20px rgba(0,240,255,0.5);
      transform: translateY(-1px);
      color: white;
    }

    .hamburger {
      display: none;
      font-size: 1.8rem;
      cursor: pointer;
      color: var(--primary-deep);
    }

    @media (max-width: 840px) {
      .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(10,14,39,0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        border-radius: 0 0 20px 20px;
      }
      .nav-menu.active {
        display: flex;
      }
      .nav-menu a {
        color: white;
        font-size: 1.1rem;
      }
      .hamburger {
        display: block;
      }
    }

    /* 通用板块 */
    section {
      padding: 80px 0;
    }

    .section-title {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-title h2 {
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--primary-deep);
      letter-spacing: 0.5px;
    }

    .section-title p {
      color: var(--text-muted);
      font-size: 1.1rem;
      margin-top: 8px;
    }

    /* Hero */
    #hero {
      background: linear-gradient(135deg, #0A0E27 0%, #1A1F3A 100%);
      padding: 120px 0 80px;
      position: relative;
      overflow: hidden;
      color: white;
    }

    #hero::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.15;
      pointer-events: none;
    }

    .hero-grid {
      display: flex;
      align-items: center;
      gap: 40px;
      position: relative;
      z-index: 2;
    }

    .hero-text {
      flex: 1;
    }

    .hero-text h1 {
      font-size: 3rem;
      font-weight: 700;
      line-height: 1.3;
      margin-bottom: 20px;
    }

    .hero-text .subtitle {
      font-size: 1.15rem;
      color: #B0B8D0;
      margin-bottom: 28px;
      max-width: 500px;
    }

    .hero-cta-group {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #00F0FF, #0088CC);
      color: white;
      border-radius: 30px;
      padding: 14px 32px;
      font-weight: 600;
      box-shadow: 0 4px 18px rgba(0,240,255,0.3);
    }

    .btn-primary:hover {
      box-shadow: 0 0 25px rgba(0,240,255,0.6);
      transform: translateY(-2px);
      color: white;
    }

    .btn-outline {
      background: transparent;
      border: 1px solid var(--accent-cyan);
      color: var(--accent-cyan);
      border-radius: 30px;
      padding: 14px 32px;
      font-weight: 600;
    }

    .btn-outline:hover {
      background: rgba(0,240,255,0.1);
      color: white;
    }

    .hero-card {
      flex: 0.8;
      background: rgba(255,255,255,0.07);
      backdrop-filter: blur(16px);
      border: 1px solid rgba(0,240,255,0.2);
      border-radius: 24px;
      padding: 24px;
      color: white;
      min-width: 280px;
    }

    .match-badge {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 20px;
    }

    .live-dot {
      display: inline-block;
      width: 10px;
      height: 10px;
      background: var(--accent-red);
      border-radius: 50%;
      margin-right: 8px;
      animation: pulse 1.4s infinite;
    }

    @keyframes pulse {
      0% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(1.3); }
      100% { opacity: 1; transform: scale(1); }
    }

    .score-display {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-family: var(--font-mono);
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--accent-cyan);
    }

    .team {
      display: flex;
      flex-direction: column;
      align-items: center;
      font-size: 0.9rem;
      color: #B0B8D0;
    }

    @media (max-width: 768px) {
      .hero-grid {
        flex-direction: column;
        text-align: center;
      }
      .hero-text h1 {
        font-size: 2.2rem;
      }
    }

    /* 核心优势 */
    .features-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.9fr 0.9fr;
      gap: 24px;
    }

    .feature-card {
      background: var(--card-bg);
      border-radius: var(--radius-card);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      transition: all 0.25s;
      border: 1px solid transparent;
      position: relative;
    }

    .feature-card:hover {
      box-shadow: var(--shadow-glow);
      border-color: rgba(0,240,255,0.3);
      transform: translateY(-4px);
    }

    .badge {
      background: rgba(0,240,255,0.1);
      color: var(--accent-cyan);
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 20px;
      font-size: 0.8rem;
      display: inline-block;
      margin-bottom: 16px;
    }

    .feature-icon {
      font-size: 2rem;
      color: var(--accent-cyan);
      margin-bottom: 16px;
    }

    @media (max-width: 768px) {
      .features-grid {
        grid-template-columns: 1fr;
      }
    }

    /* 功能分组 */
    .module-row {
      display: flex;
      align-items: center;
      gap: 48px;
      margin-bottom: 60px;
    }

    .module-row.reverse {
      flex-direction: row-reverse;
    }

    .module-img {
      flex: 1;
      background: #eef2f6;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    }

    .module-img img {
      width: 100%;
      height: auto;
      object-fit: cover;
    }

    .module-text {
      flex: 1;
    }

    .module-text h3 {
      font-size: 1.8rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    @media (max-width: 768px) {
      .module-row, .module-row.reverse {
        flex-direction: column;
      }
    }

    /* 使用场景 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .scenario-card {
      background: white;
      padding: 28px;
      border-radius: 20px;
      background: #f9fafc;
      transition: 0.2s;
      border: 1px solid transparent;
    }

    .scenario-card:hover {
      border-color: var(--accent-cyan);
      box-shadow: 0 6px 20px rgba(0,0,0,0.05);
    }

    @media (max-width: 640px) {
      .scenario-grid {
        grid-template-columns: 1fr;
      }
    }

    /* 数据背书 */
    .stats-container {
      display: flex;
      justify-content: space-around;
      flex-wrap: wrap;
      text-align: center;
      background: white;
      border-radius: 28px;
      padding: 40px 20px;
      box-shadow: var(--shadow-sm);
    }

    .stat-item h3 {
      font-family: var(--font-mono);
      font-size: 2.5rem;
      color: var(--accent-cyan);
    }

    /* FAQ */
    .accordion-item {
      background: white;
      border-radius: 12px;
      margin-bottom: 12px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    }

    .accordion-title {
      font-weight: 600;
      padding: 18px 24px;
      display: flex;
      align-items: center;
      gap: 12px;
      cursor: pointer;
      background: #f8fafd;
      border-radius: 12px;
    }

    .accordion-content {
      padding: 0 24px 20px;
      color: var(--text-muted);
    }

    /* CTA底部 */
    # 电竞比分网 - 专业电竞比分数据与赛事分析平台 {
      background: linear-gradient(135deg, #0A0E27, #1A1F3A);
      color: white;
      text-align: center;
      border-radius: 0;
    }

    /* 页脚 */
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 30px;
      padding: 40px 0;
    }

    @media (max-width: 768px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    .copyright {
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: 20px;
      text-align: center;
      color: #B0B8D0;
      font-size: 0.9rem;
    }